Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As McCollum steps into September, the average high-temperature is measured at a warm 83.7°F (28.7°C), displaying minor differences from August's 88.5°F (31.4°C). McCollum, during the month of September, experiences an average low-temperature of 65.1°F (18.4°C).Heat index
The heat index for September is computed to be a tropical 91.4°F (33°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Remember that heat index calculations are made for conditions in the shade with light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
The average relative humidity in September is 73%.Rainfall
In McCollum, in September, during 13.7 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. In McCollum, during the entire year, the rain falls for 179.7 days and collects up to 39.76" (1010mm) of precipitation.Snowfall
In McCollum, snow does not fall in April through October.Daylight
The average length of the day in September in McCollum is 12h and 22min.On the first day of September, sunrise is at 7:13 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:24 pm EDT.
Sunshine
The average sunshine in September in McCollum is 8.6h.UV index
May through September, with an average maximum UV index of 6, are months with the highest UV index in McCollum. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in McCollum?
What is the average humidity in September in McCollum?
How much does it rain in McCollum in September?
When it does not snow in McCollum?
What is the average length of the day in September in McCollum?
When is the sunrise / sunset in September in McCollum?
How many hours of sunshine does McCollum have in September?
What is the month with the highest UV index in McCollum?
How high is the UV index in September in McCollum?
Average temperature in September
McCollum, GA
- Average high temperature in September: 83.7°F
The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (51.6°F).
- Average low temperature in September: 65.1°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).
Average pressure in September
McCollum, GA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
McCollum, GA
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
McCollum, GA
- Average humidity in September: 73%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are October and November (72%).
Average rainfall in September
McCollum, GA
- Average rainfall in September: 2.76"
The wettest month (with the highest rainfall) is August (5.04").
The driest month (with the least rainfall) is October (2.13").
Average rainfall days in September
McCollum, GA
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is October (9.5 days).
Average snowfall in September
McCollum, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
McCollum, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
McCollum, GA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
McCollum, GA
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (7 days).
Average UV index in September
McCollum, GA
- Average UV index in September: 6
The months with the highest UV index are May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
McCollum, GA
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 46).
The months with the least cloud cover are June and October (Cloud cover 31).
Average visibility in September
McCollum, GA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
McCollum, Georgia, USA
Weather forecast for your location
2. Allow the app to use your location